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    • 2. 发明授权
    • Emergency release tool
    • 紧急释放工具
    • US5984006A
    • 1999-11-16
    • US943887
    • 1997-10-03
    • Dennis M. ReadDwayne D. Leismer
    • Dennis M. ReadDwayne D. Leismer
    • E21B17/02E21B17/046E21B17/06E21B23/04E21B23/00
    • E21B17/06E21B17/028E21B17/046E21B23/04
    • An improved emergency release tool is provided to releasably connect a coiled tubing to one or more downhole tools. The emergency release tool broadly includes a releasable slip for holding a coiled tubing, the releasable slip being secured to a first end of a slip case, the slip case being disposed within a slip housing and a lower housing, the slip housing being movable from a locked position to a released position; a piston slidably disposed about the slip case and being moveable from a locked position to a released position; a first end of the lower housing being releasably connected to a second end of the slip housing when the slip housing is in its locked position; and, a remotely activated means for moving the piston and the slip housing from their locked positions to their released positions to disengage the releasable slip from the coiled tubing and enable the coiled tubing to be removed from the tool. A quick disconnect coupler is also provided, and broadly includes a pin connector having a series of lugs; a box connector for receiving the pin connector and having a series of recesses to engage and hold the lugs inside the box connector; and, a load ring between the box connector and the pin connector for transmitting compressive loads through the connection.
    • 提供改进的紧急释放工具以将连续油管可释放地连接到一个或多个井下工具。 紧急释放工具广泛地包括用于保持连续油管的可释放滑动件,所述可释放滑动件固定到滑动壳体的第一端,所述滑动壳体设置在滑动壳体和下壳体内,所述滑动壳体可从 锁定位置到释放位置; 可滑动地设置在所述滑动壳体周围并且可以从锁定位置移动到释放位置的活塞; 当滑动壳体处于其锁定位置时,下壳体的第一端可释放地连接到滑动壳体的第二端; 以及用于将活塞和滑动壳体从其锁定位置移动到其释放位置的远程激活装置,以使可释放滑动从连续油管中脱离,并使得连续油管能够从工具中移除。 还提供快速断开联接器,并且广泛地包括具有一系列凸耳的销连接器; 用于接收销连接器并具有一系列凹槽的盒连接器,以将凸耳接合并保持在盒连接器内部; 以及盒连接器和针连接器之间的负载环,用于通过连接传递压缩载荷。
    • 3. 发明授权
    • Fluid circulation apparatus
    • 流体循环装置
    • US6003834A
    • 1999-12-21
    • US683755
    • 1996-07-17
    • Dennis M. Read
    • Dennis M. Read
    • E21B21/10E21B34/06E21B4/04
    • E21B34/066E21B21/103
    • A fluid circulation apparatus for interconnection with a wellbore tubing string for particular use in drilling deviated wellbores, such as with coiled tubing. The circulation apparatus has a tubular body member with a longitudinal bore extending eccentrically therethrough and threads for interconnection with a tubing string. A fluid communication port extends through a sidewall of the tubular body member, and a shiftable sleeve is placed thereacross for selectively permitting and preventing fluid flow through the fluid communication port. The valve is biased in a normally closed position by way of a spring and/or hydraulic fluid. Fluid control means, such as a hydraulic fluid source conveyed from a downhole Hydraulic Power Unit to an internal piston, opens or closes the valve in response to electrical signals sent to the Hydraulic Power Unit from the earth's surface.
    • 用于与钻井管柱相互连接的流体循环装置,特别用于钻井偏转井筒,例如用螺旋管。 循环装置具有管状本体构件,其具有向心偏心延伸的纵向孔和用于与管柱相互连接的螺纹。 流体连通口延伸穿过管状本体构件的侧壁,并且可移动的套筒被放置在其上,用于选择性地允许和防止流体流过流体连通口。 阀通过弹簧和/或液压流体被偏置在常闭位置。 流体控制装置,例如从井下液压动力装置输送到内部活塞的液压流体源,响应于从地球表面发送到液压动力装置的电信号来打开或关闭阀。
    • 4. 发明授权
    • Downhole valve
    • 井下阀门
    • US06328109B1
    • 2001-12-11
    • US09713049
    • 2000-11-15
    • Ronald E. PringleClay W. Milligan, Jr.Dennis M. Read
    • Ronald E. PringleClay W. Milligan, Jr.Dennis M. Read
    • E12B3410
    • E21B23/006E21B34/102E21B47/1025E21B2034/005
    • The invention is a downhole valve that includes a body, a flow tube assembly that includes an upper tube member and a lower tube member, and a flapper valve. The flapper valve is pivotally attached to the body and is positioned between the upper tube member and the lower tube member when the flapper valve is in a closed position that blocks fluid flow in an internal bore of the body. The flapper valve is moved from the closed position to an open position in response to an upward movement of the upper tube member and the lower tube member. When the flapper valve pivots to the open position, the lower tube member moves adjacent to and forms a seal with the upper tube member, forming an unobstructed internal bore.
    • 本发明是一种井下阀,其包括主体,包括上管构件和下管构件的流管组件和挡板阀。 当挡风阀处于闭合位置时,挡板阀枢转地附接到主体并且定位在上管构件和下管构件之间,该关闭位置阻止在主体的内孔中的流体流动。 响应于上管部件和下管部件的向上运动,挡板阀从关闭位置移动到打开位置。 当挡板阀枢转到打开位置时,下管构件相邻移动并与上管构件形成密封,形成无阻碍的内孔。